Boots – shoes – and leggings
Patent
1987-09-25
1989-08-08
Clark, David L.
Boots, shoes, and leggings
364900, G06F 314
Patent
active
048559369
ABSTRACT:
An application program interface for handling full-screen input/output (I/O) operations of a display device in an information handling system, such as a computer system running one or more application programs in conjunction with an operating system. The application program interface first determines characteristics of the display device in response to a request from an application program prior to performing a full-screen I/O operation, and provides these characteristics to the application program so that the application program can provide a buffer, and if an output is to be performed, construct a valid data stream for the display device. Then the application program interface builds a parameter list in response to a request from an application program to actually perform the full-screen I/O operation. Next, in response to the parameter list, the application program interface generates instructions to process the full-screen I/O operation and coordinate this request with other requests made by other application programs. The application program interface then passes the generated instructions to a control program of the information handling system to perform the desired full-screen I/O operation, and handles any status information resulting from the I/O operation. In this manner, the application program interface provides a means for allowing an application programmer to write an application program without being concerned with low level detail of a full-screen I/O operation, as well as providing a means for coordinating full-screen I/O use of a display device by several application programs in an information handling system, and a means for allowing an application program to be architecture independent with respect to full-screen I/O operation.
REFERENCES:
patent: 4486828 (1984-12-01), Kitamura et al.
patent: 4509122 (1985-04-01), Agnew et al.
patent: 4646235 (1987-02-01), Hirosawa et al.
patent: 4679074 (1987-07-01), Sugiura et al.
"IBM System/370-Extended Architecture Principles of Operation", SA22-7085, Mar. 1983.
"IBM System/370 Principles of Operation," GA22-7000, Aug. 1976 as amended by IBM Technical Newsletter No. GN22-0683, Jun. 12, 1985.
"Virtual Machine/System Product CMS Console Facility, Release 4", SC24-5333-0, Jul. 1986.
"VM/SP System Facilities for Programming, Release 5", SC24-5288-0, Dec. 1986.
Casey Christine T.
Record Stephen E.
Clark David L.
International Business Machines Corp.
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